Interface cleanups to prepare the return of "grouped sorting"

- Rename setCategorizedSorting() to setGroupedSorting()
- Change the model interface to allow enabling/disabling grouping
  without the need to declare a role (the sort role will be taken).
- Add dummy group role implementation in KFileItemModel

The grouping code itself requires some cleanups and might crash
at the moment or lead to weird layouts.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/kitemviews/kitemlistview.h b/src/kitemviews/kitemlistview.h
index e1678145d..c18f8cb84 100644
--- a/src/kitemviews/kitemlistview.h
+++ b/src/kitemviews/kitemlistview.h
@@ -253,6 +253,7 @@ protected slots:
                                   const QSet<QByteArray>& roles);
 
 private slots:
+    void slotGroupedSortingChanged(bool current);
     void slotCurrentChanged(int current, int previous);
     void slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous);
     void slotAnimationFinished(QGraphicsWidget* widget,